Abstract
This paper addresses the problem of scheduling the cleaning actions of a heat exchanger undergoing fouling and ageing. The existence of two discrete layers leads to the use of two cleaning methods which differ in their ability to remove the aged layer. A mixed integer nonlinear programming (MINLP) model is presented and solved for three case studies with different ageing rates. The optimal schedule consists of: (i) the timing of the cleanings and (ii) the cleaning mode in each instant.
Original language | English |
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Pages (from-to) | 179-185 |
Number of pages | 7 |
Journal | Computers and Chemical Engineering |
Volume | 39 |
DOIs | |
Publication status | Published - 6 Apr 2012 |
Keywords
- Ageing
- Cleaning
- Fouling
- Heat exchangers
- MINLP
- Scheduling